Transforms complex documents like PDFs into LLM-ready markdown/JSON for your Agentic workflows.

Parse, validate, manipulate, and display dates in javascript.

A markdown parser and compiler. Built for speed.

Natural Language Processing for the next decade. Tokenization, Part-of-Speech Tagging, Named Entity Recognition, Syntactic & Semantic Dependency Parsing, Document Classification

Rust-based platform for the Web

Javascript Canvas Library, SVG-to-Canvas (& canvas-to-SVG) Parser

The fast, flexible, and elegant library for parsing and manipulating HTML and XML.

Transforming styles with JS plugins

A simple Python Pydantic model for Honkai: Star Rail parsed data from the Mihomo API.

An incremental parsing system for programming tools

A simple screen parsing tool towards pure vision based GUI agent

Parsing gigabytes of JSON per second : used by Facebook/Meta Velox, the Node.js runtime, ClickHouse, WatermelonDB, Apache Doris, Milvus, StarRocks

Parse CSS and add vendor prefixes to rules by Can I Use

Parse Server for Node.js / Express

Markdown parser, done right. 100% CommonMark support, extensions, syntax plugins & high speed

⚓ A collection of high-performance JavaScript tools.

ANTLR (ANother Tool for Language Recognition) is a powerful parser generator for reading, processing, executing, or translating structured text or binary files.

Google's common Java, C++ and JavaScript library for parsing, formatting, and validating international phone numbers.

swagger-codegen contains a template-driven engine to generate documentation, API clients and server stubs in different languages by parsing your OpenAPI / Swagger definition.

A PHP parser written in PHP

A full featured, fast Command Line Argument Parser for Rust

PDF Parser for AI-ready data. Automate PDF accessibility. Open-source.

Get JSON values quickly - JSON parser for Go

A fast JSON parser/generator for C++ with both SAX/DOM style API

Better Markdown Parser in PHP

A high-performance 100% compatible drop-in replacement of "encoding/json"

Pythonic HTML Parsing for Humans™

Fast and powerful CSV (delimited text) parser that gracefully handles large files and malformed input

JavaScript parser / mangler / compressor / beautifier toolkit

Ultralightweight JSON parser in ANSI C